Azoospermia is seen in 1% of all male population and 10-15% of couples being investigated for infertility, that is, no dead or live sperm cells are found in the assays. However, in some cases, when examined in detail, mature sperm can be found, albeit in small numbers. This is called “cryptozoospermia”.
If cryptozoospermia cannot be corrected with treatment, IVF is recommended. How the functions of sperms with severely reduced production will be affected is still a subject of research. How do sperms that are found in very small numbers in the assays affect the IVF result? Or, if we do an embryo biopsy during in vitro fertilization and send it for genetic examination, if a negative result is obtained, is it because of sperm? The best IVF clinic in Istanbul, Caretta Clinic will answer these questions.
The issue of whether it will prevent pregnancy when in vitro fertilization is performed with very low sperm counts has not yet been fully clarified. For example, it is known that although sperm quality deteriorates in older men, this does not eliminate the chance of pregnancy. In a recent study, looking at the results of more than a thousand couples who had IVF, it was revealed that the worse the sperm values, the lower the chance of fertilization in the egg.
In these, embryo development was also impaired and lost its vitality before it reached the fifth day. However, strikingly, it was also observed that the decrease in sperm values did not increase the risk of deterioration in the genetic structure of the embryo. In other words, normal or defective genetic examination results of embryo biopsies, which we call PGD, are not affected by sperm values.
The conclusion to be drawn from all these; sperm quality significantly determines fertilization and the progression of the embryo to the blastocyst stage on the 3rd or even 5th day, but once it has reached the blastocyst stage, it has nothing to do with the development of a genetic anomaly in the embryo or the baby. However, these are only related to the number of sperm, there are other factors that determine the quality of sperm, and their deterioration can significantly affect the success of pregnancy. IVF clinic in Turkey, Caretta Clinic can answer all your questions about IVF. Please contact us for more information.
As a result, when in vitro fertilization is unsuccessful, determining whether it is related to fertilization, embryo development or the continuation of pregnancy after transfer to the mother and taking the necessary precautions in terms of sperm can be a guide in making the next treatment plan.
Don't forget to check our article "Differences between IVF and normal pregnancy".
